Communication apparatus having a printer controlling recording in accordance with a bilateral record correction valve
US5819013A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A communication apparatus suppresses an unnecessary recovery operation when the communication apparatus is raised from a low power consumption mode to a normal operation mode to shorten a time before a printer unit is ready for printing. When the printer unit wakes up from a sleep mode, a time counted by a recovery timer in a facsimile control unit is sent to the printer unit as time data through a bilateral path. A CPU in the printer unit adds time data stores in an NVRAM at the time of entry of the facsimile apparatus to the low power consumption mode to the sent time data to determine the recovery level based on the sum time data and the recovery operation is executed. When the supply of power to an ink jet printer is stopped to reduce the power consumption, a timer in the printer and a bilateral record correction value deviate so that the recovery operation which is to be executed at an interval of 72 hours cannot be executed at the correct time interval. A non-power-supply time of the printer is notified from the main unit to the printer through a serial communication unit when the power is supplied to the printer next time in stopping the supply of power to the printer for po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.